Web MVC开发程序代码的简写方法，强类型数据和Html helper使用方法。车老师代码
控制器代码
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using MvcApplication1.Models; using System.IO; namespace MvcApplication1.Controllers { public class HomeController : Controller { public ActionResult Index() { List<Info> list = new InfoBF().Select(); //ViewBag.Data = new InfoBF().Select(); return View(list); //强类型数据写法 } public ActionResult Add() { Info data = new Info(); List<Nation> list = new NationBF().Select(); ViewBag.Data= new SelectList(list,"Code","Name"); return View(data); //强类型数据写法 } public ActionResult Insert(Info data) //强类型数据写法 { new InfoBF().Insert(data); return RedirectToAction("Index"); } //public ActionResult Insert(string code, string name, bool sex, string nation, DateTime birthday) //{ // new InfoBF().Insert(code, name, sex, nation, birthday); // return RedirectToAction("Index"); //} //显示出修改的界面来 public ActionResult Edit(string id) { Info data = new InfoBF().Select(id); List<Nation> list = new NationBF().Select(); SelectList options = new SelectList(list, "Code", "Name", data.Nation); ViewBag.Nations = options; return View(data); //强类型数据写法 } //更新回数据库 public ActionResult Update(string code,string name,bool sex,string nation,DateTime birthday) { new InfoBF().Update(code, name, sex, nation, birthday); return RedirectToAction("Index"); } public ActionResult Delete(string id) { new InfoBF().Delete(id); return RedirectToAction("Index"); } //using 的用法 public void Test() { //using (SqlConnection conn = new SqlConnection("...")) //{ // using (SqlCommand cmd = conn.CreateCommand) // { // cmd.CommandText = ""; // using (SqlDataReader dr = cmd.ExecuteReader()) // { // } // } //} //using (StreamWriter writer = new StreamWriter()) //{ // writer.Write("adsf"); //} //StreamWriter writer = null; //try //{ // writer = new StreamWriter(); // writer.Write("asdfsa"); // return; //} //catch //{ //} //finally //{ // writer.Close(); //} } } }
MOdel里的增删改查方法
using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace MvcApplication1.Models { public class InfoBF { private MyDBDataContext _Context = new MyDBDataContext(); public List<Info> Select() { return _Context.Info.ToList(); } public Info Select(string code) { var query = _Context.Info.Where(p=>p.Code == code); if (query.Count() > 0) { return query.First(); } return null; } public void Insert(string code, string name, bool sex, string nation, DateTime birthday) { Info data = new Info { Code = code, Name = name, Sex = sex, Nation = nation, Birthday = birthday }; _Context.Info.InsertOnSubmit(data); _Context.SubmitChanges(); } //添加数据，强类型数据传值方法。非常简单 public void Insert(Info data) { _Context.Info.InsertOnSubmit(data); _Context.SubmitChanges(); } public void Delete(string code) { var query = _Context.Info.Where(p=>p.Code == code); if (query.Count() > 0) { Info data = query.First(); _Context.Info.DeleteOnSubmit(data); _Context.SubmitChanges(); } } public void Update(string code, string name, bool sex, string nation, DateTime birthday) { var query = _Context.Info.Where(p => p.Code == code); if (query.Count() > 0) { Info data = query.First(); data.Name = name; data.Sex = sex; data.Nation = nation; data.Birthday = birthday; _Context.SubmitChanges(); } } } }
视图里的Html代码
@using MvcApplication1.Models; @model List<Info> @{ Layout = null; } <!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width" /> <title>Index</title> <style type="text/css"> .tbhead { background-color:navy; text-align:center; color:white; font-weight:bold; } .tbrow { text-align:center; background-color:#FFFFcc; } </style> </head> <body> <div> <table id="tbinfo" width="100%" cellpadding="4" cellspacing="1" bgcolor="black" border="0"> <tr class="tbhead"> <td>代号</td> <td>姓名</td> <td>性别</td> <td>民族</td> <td>生日</td> <td>操作</td> </tr> @{ foreach( Info data in Model) { <tr class="tbrow"> <td>@data.Code</td> <td>@data.Name</td> <td><img src="@(data.Sex.Value?"images/male.png":"images/female.png")" /></td> <td>@data.Nation</td> <td>@data.Birthday</td> <td> @* Html帮助的用法，主要用于form表单和超链接*@ @Html.ActionLink("修改", "Edit", "Home", new {id=data.Code}, new { }) @Html.ActionLink("删除", "Delete", "Home", new { id = data.Code }, new { onclick="return confirm('确认要删除吗？')"}) </td> </tr> } } </table> @Html.ActionLink("添加人员", "Add", "Home") </div> </body> </html>
@using MvcApplication1.Models; @model Info @{ Layout = null; } <!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width" /> <title>Edit</title> </head> <body> <div> @* Html帮助form 表单的用法*@ @using(Html.BeginForm("Update","Home", FormMethod.Post)){ <h1>修改人员</h1> <div> @{ //Info data = ViewBag.Data as Info; //if(data != null) if(Model != null) { @* 下面这段代码非常重要！！！！！！！！！！！*@ <div> 代号：@Html.TextBoxFor(p=>p.Code) @*@Html.TextBox("code",Model.Code)*@<br/> 姓名：@Html.TextBoxFor(m=>m.Name)@*@Html.TextBox("name",Model.Name)*@<br/> 性别：@Html.RadioButtonFor(sg=>sg.Sex,"true") @*@Html.RadioButton("sex","true",Model.Sex == true)*@男 @Html.RadioButtonFor(p=>p.Sex,"false") @*@Html.RadioButton("sex","false",Model.Sex == false)*@女<br/> 民族：@Html.DropDownListFor(p=>p.Nation,ViewBag.Nations as SelectList) @*@Html.DropDownList("nation",ViewBag.Nations as SelectList)*@ <br/> 生日：@Html.TextBoxFor(p=>p.Birthday) @*@Html.TextBox("birthday",Model.Birthday)*@ <br/> <input id="Submit1" type="submit" value="更新" /> </div> } } </div> } </div> </body> </html>
@using MvcApplication1.Models; @model Info @{ Layout = null; } <!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width" /> <title>Add</title> <style type="text/css"> .test { border:0px; border-bottom:1px solid black; } </style> </head> <body> <div> @*下面这段代码非常重要！！！！！！！！！！！！！！！！！！！！！！！！！！*@ @*@{Html.BeginForm("Insert", "Home", FormMethod.Post);}*@ @using(Html.BeginForm("Insert","Home", FormMethod.Post)){ <h1>添加人员</h1> <div> <div> 代号：@Html.TextBoxFor(p=>p.Code) @*@Html.TextBox("code", "",new { @class="test"})*@<br/> 姓名：@Html.TextBox("name", "", new { @class="test"})<br/> 性别：@Html.RadioButton("sex","true",true) 男 @Html.RadioButton("sex","false") 女<br/> 民族：@Html.DropDownList("nation",ViewBag.Data as SelectList)<br/> 生日：@Html.TextBox("birthday", "", new { @class="test"})<br/> <input id="Submit1" type="submit" value="更新" /> </div> </div> } @*@{Html.EndForm();}*@ </div> </body> </html>
